MT / jurisdiction index
Address history in Montana
Choose one of 56 counties and county equivalents. The task stays fixed while the source plan narrows to the county-equivalent level.
56county-equivalent routes
145,550land sq mi represented
MTCensus / postal code
Geographic names and measurements come from the 2025 Census Gazetteer. A representative coordinate identifies the geography, not a courthouse or records office.
County signal map
Select the record jurisdiction.
001Beaverhead CountyGEOID 30001↗002Big Horn CountyGEOID 30003↗003Blaine CountyGEOID 30005↗004Broadwater CountyGEOID 30007↗005Carbon CountyGEOID 30009↗006Carter CountyGEOID 30011↗007Cascade CountyGEOID 30013↗008Chouteau CountyGEOID 30015↗009Custer CountyGEOID 30017↗010Daniels CountyGEOID 30019↗011Dawson CountyGEOID 30021↗012Deer Lodge CountyGEOID 30023↗013Fallon CountyGEOID 30025↗014Fergus CountyGEOID 30027↗015Flathead CountyGEOID 30029↗016Gallatin CountyGEOID 30031↗017Garfield CountyGEOID 30033↗018Glacier CountyGEOID 30035↗019Golden Valley CountyGEOID 30037↗020Granite CountyGEOID 30039↗021Hill CountyGEOID 30041↗022Jefferson CountyGEOID 30043↗023Judith Basin CountyGEOID 30045↗024Lake CountyGEOID 30047↗025Lewis and Clark CountyGEOID 30049↗026Liberty CountyGEOID 30051↗027Lincoln CountyGEOID 30053↗028McCone CountyGEOID 30055↗029Madison CountyGEOID 30057↗030Meagher CountyGEOID 30059↗031Mineral CountyGEOID 30061↗032Missoula CountyGEOID 30063↗033Musselshell CountyGEOID 30065↗034Park CountyGEOID 30067↗035Petroleum CountyGEOID 30069↗036Phillips CountyGEOID 30071↗037Pondera CountyGEOID 30073↗038Powder River CountyGEOID 30075↗039Powell CountyGEOID 30077↗040Prairie CountyGEOID 30079↗041Ravalli CountyGEOID 30081↗042Richland CountyGEOID 30083↗043Roosevelt CountyGEOID 30085↗044Rosebud CountyGEOID 30087↗045Sanders CountyGEOID 30089↗046Sheridan CountyGEOID 30091↗047Silver Bow CountyGEOID 30093↗048Stillwater CountyGEOID 30095↗049Sweet Grass CountyGEOID 30097↗050Teton CountyGEOID 30099↗051Toole CountyGEOID 30101↗052Treasure CountyGEOID 30103↗053Valley CountyGEOID 30105↗054Wheatland CountyGEOID 30107↗055Wibaux CountyGEOID 30109↗056Yellowstone CountyGEOID 30111↗
No county-equivalent name matches this filter.
Source split
One task can cross more than one office.
Assessors, recorders, planning departments, and courts can hold different address-linked events.
A mailing address, service address, and residence are not interchangeable and should not be treated as proof that a person lived there.